Fast-Dissolving, Calcium-Free Hot Tub & Spa Chlorine (800g)
Keep your spa water clean, clear, and properly sanitized with Lawrasons stabilized chlorine concentrate (Product Code 47000C65). Specially formulated for hot tubs and spas, this premium granular sanitizer contains sodium dichloro-s-triazinetrione-dihydrate and delivers powerful, reliable sanitation without the drawbacks of calcium-based chlorine.
Unlike calcium hypochlorite products, this advanced formula is calcium-free, helping prevent scale buildup on spa surfaces and heater elements protecting your investment and extending equipment life.
Key Features & Benefits
56% Available Stabilized Chlorine
Provides strong, effective sanitation to control bacteria and algae in spa water.
Stabilized with Cyanuric Acid (CYA)
Protects chlorine from UV degradation, making it ideal for outdoor hot tubs and spas.
Fast-Dissolving Granules
Leaves no residue and works quickly for both routine sanitation and shock treatments.
Minimal pH Impact (pH 67 in 1% solution)
Helps maintain balanced spa water chemistry more easily than unstabilized chlorine.
Calcium-Free Formula
Prevents scale formation on heaters and internal components essential for spa systems.
Ideal For
Portable hot tubs
Acrylic spas
Plug-and-play spas
Outdoor spa installations
Daily maintenance and shock treatments
Recommended Water Balance Levels
For optimal performance, maintain:
| Parameter | Recommended Level |
|---|---|
| Free Available Chlorine | 3.0 5.0 ppm |
| pH | 7.2 7.8 |
| Total Alkalinity | 100 120 ppm |
| Calcium Hardness | 150 200 ppm |
Proper water balance ensures effective sanitation, bather comfort, and equipment longevity.
Application Instructions
Superchlorination (Initial Treatment / Shock)
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Add the recommended dose based on spa water volume.
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Circulate water fully before spa use.
Routine Daily Maintenance
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Test spa water regularly.
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Add the required amount of granules to maintain 35 ppm free chlorine.
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Adjust dosage based on bather load and test results.
Always circulate water after application for even distribution.
Why Choose PTL Direct Stabilized Spa Chlorine?
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Designed specifically for spas not pools
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Longer-lasting protection in outdoor environments
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Easier water balance management
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Protects heater elements from scale buildup
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Professional-grade performance for residential use
Lawrasons 47000C65 Stabilized Spa Chlorine Concentrate provides dependable sanitation, water clarity, and long-lasting protection helping you maintain safe, comfortable spa water all season long.
